621031041 has 12 divisors (see below), whose sum is σ = 901555200. Its totient is φ = 411939000.

The previous prime is 621031009. The next prime is 621031043. The reversal of 621031041 is 140130126.

It is a happy number.

621031041 is a `hidden beast` number, since 621 + 0 + 3 + 1 + 0 + 41 = 666.

It is not a de Polignac number, because 621031041 - 2⁵ = 621031009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (621031043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171585 + ... + 175166.

It is an arithmetic number, because the mean of its divisors is an integer number (75129600).

Almost surely, 2^621031041 is an apocalyptic number.

It is an amenable number.

621031041 is a deficient number, since it is larger than the sum of its proper divisors (280524159).

621031041 is a wasteful number, since it uses less digits than its factorization.

621031041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346956 (or 346953 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 621031041 is about 24920.4943971824. The cubic root of 621031041 is about 853.1743089320.

Adding to 621031041 its reverse (140130126), we get a palindrome (761161167).

The spelling of 621031041 in words is "six hundred twenty-one million, thirty-one thousand, forty-one".